ML100630418
| ML100630418 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/01/2010 |
| From: | Baxter D Duke Energy Carolinas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML100630418 (3) | |
Text
- Duke DAVE BAXTER k Vice President Energ Oconee Nuclear Station Duke Energy ONO0 VP / 7800 Rochester Highway Seneca, SC 29672 864-873-4460 864-873-4208 fax dabaxter@dukeenergy.com March 1, 2010 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555
Subject:
Duke Energy Carolinas, LLC Oconee Nuclear Station, Units 1, 2, and 3 Docket Numbers 50-269, 50-270, and 50-287 Support for NRC Review of AREVA Topical Report ANP-1 0303P Reference 1:
NRC:09:063, AREVA NP letter to NRC dated June 11, 2009, "Request for Review and Approval of ANP-10303P, "SIVAT: TELEPERM XSTM Simulation Validation Test Tool Topical Report."
Reference 2:
NRC Letter to Duke dated January 28, 2010, "Oconee Nuclear Station, Units 1, 2, and 3, Issuance of Amendments Regarding Acceptance of the Reactor Protective System and Engineered Safeguard Protective System (RPS/ESPS)
Digital Upgrade."
Duke Energy Carolinas, LLC (Duke) recently received approval (Reference 2) to install a TELEPERM XS (TXS) digital computer based RPS and ESPS to replace the existing analog RPS/ESPS at Oconee Nuclear Station (ONS). The first implementation of this modification will be performed on Unit 1 in the Spring 2011 refueling outage.
AREVA NP used SIVAT as a design tool during development of the application software for the Oconee RPS/ESPS. The tool was not used for Verification and Validation (V&V) on the Oconee project since it was not an NRC approved validation tool. The V&V methodology approved for the Oconee RPS/ESPS digital upgrade relies on validation testing performed in the test field at the factory acceptance test stage. After the TXS system is installed in the plant, there will be limited capability to perform V&V in the Factory Acceptance Testing (FAT) or Site Acceptance Testing (SAT) test environment.
Duke would like to have SIVAT available to facilitate the V&V of software changes that may emerge after installation. After TXS is implemented on all Oconee units, performing V&V on subsequent software changes (e.g., addition of a measurement function) will become more difficult without the use of SIVAT.
Therefore, Duke requests that NRC prioritize their review of the SIVAT Topical Report (Reference 1) considering Duke future needs.
www. duke-energy, com
U. S. Nuclear Regulatory Commission March 1, 2010 Page 2 If there are any questions regarding this submittal, please contact Boyd Shingleton at (864) 873-4716.
Sincerely, Dave axter, Vice President Oconee Nuclear Station
U. S. Nuclear Regulatory Commission March 1, 2010 Page 3 cc:
Mr. J. F. Stang, Project Manager Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 0-14 H25 Washington, D. C. 20555 Mr. L. A. Reyes, Regional Administrator U. S. Nuclear Regulatory Commission - Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 Mr. A. T. Sabisch Senior Resident Inspector Oconee Nuclear Station S. E. Jenkins, Manager Infectious and Radioactive Waste Management Section 2600 Bull Street Columbia, SC 29201